Refrigerating-machine.



M. LEBLANC. REFRIGERATING MACHINE. APPLIoATIo'N FILED rms. 15, 1 905.

Patented Oct.

j aars i ny nsrnocnna .l @lit fknew'ng'that.Lf-MAURICE'LEBLANG, a

` citizen vofl theR'epublic of France, residt in' M'ltmorency, Auteuil, Paris,

France, have invented a new and useful Improvernentl in -Refrigerati11g-Machines, of

which the followingqis a specification.

This invention relates to refrigerating apparatus .and has for itsjobject to provide a 1.0 refrigerating machine which will voperate with a rapidity and eiliciency hitherto unattainable. j

In the accompanying drawings, the ligure ;isa vertical section showing the arrange- 15 ment ofl the apparatus.

, In the drawings a removable mold or receptacle 2 is shown as inserted into an inelosed air-tight vacuum chamber 18 consistin of a stationary cylinder 19 supported on 20 a. ange 20 and a removable cover 21 which is Ainserted into a groove 22 provided in the u pper end of the cylinder 19 for the receptlon of packing. The joint between the cover Y21 and the cylinder 19 is maintained 25'by means of a screw 23 working in a removffable yoke'v 24 supported on trunnions 43 on ...the cylinder 19.-v The pipe-ring or rose 4 is carried by the cover 21 to which it is attached Iby vmeans-,of a short length of tubing 26 30 screwed into a central boss 25 and in connection with'y the inlet passage 3. Connection between the inlet passage 3 and a suitable` rsource of liquid supply is made by means of a flexible pipe 27 and a cock 28 which is secured to the outside of the cover 21 by means of a bayonet joint. The relative positions of 'the ports in the cock 28 and of the jaws of the bayonet joint are so arranged that when the tongues of the bayonet joint are free the 40' cock is closed. The lower end of the cylinlder 19 terminates in a trunk 29 in which are inclosed and' supported a series of two ejectors 5 and '6 and the condenser 1G. 'I he removable mold 2 is supported on a seating yring 30 provided at the/lower end of the cylinder 19. At a suitable distance below -the seating ring 30 a second supporting ring 32 is provided for vcarrying the first ejector cone SS Free communication between the interior of the cylinder 19 and the space 84 between the two support-ing rings 30 and 32 is provided b v means of a suitable numberot orifices 81 in the supporting ring 30, and free communication between the space 34 wissTinenous'n-LEBLAIMJ, or rants. FRANCE.

f1'nEFnreEnnTi-NGMAGHINE. i l

p Spe'cicatonof Letters-Patent. Patented Oct. 17, 1911. .'Application filed February 15,1905. VA*Serial No. 245,719. A

and the trunk 29 is provided by means of suitable orifices 35 in the supporting ring 32. Steam is .admitted to the two ejec'tors 5 and 6 by a common inlet pipe 7 .and the condensing Water is admitted by a pipe 36 vto arose 87 arranged above a cone 38 of 16 is shown, a condenser of any type may.

be employed.

When condensing water is plentiful and of low temperature so that a high degree of vacuum can be obtained in the condenser, the series of ejectors may be operated by steam at atmospheric pressure.

The loperation is as follows: When a vacuum, or partial vacuum, is created in the head and mold 2 by the combined action of the ejectors 5 and 6, the liquid as'it is gradually introduce-d by the, pipe-ring 4 is partially evaporated, causing a fall in the temperature sufficient to cool or freeze the remainder of the liquid on falling into the mold 2, the vapor given ofi being meanwhile exhausted by the ejectors.

What I claim is:

1. A freezing machine comprising a vacuum chamber, a primary'iiuid ejector conimunicating with said chamber, an auxiliary fluid ejector communicating with the exhaust ofsaid primary ejector, a jet'condenser communicating with the exhaust of said auxiliary `ejector and a liquid ejector communicating with the exhaustv of said auxiliary ejector. ceaxially alined'therewith and arrangedto discharge the liquid from saidr condenser.

2. A freezing machine comprising'a vacuum chamber. a primary fluid ejector communicating therewith, a secondary fluid ejector communicating with the exhaust of saidI primary ejector. a jet condenser communicating with the exhaust of the secondary ejector and a liquid ejector located ceaxially with said fluid ejectors and communicating with the exhaust of said secondary ejector and arranged to receive and discharge the liquid from said condenser.

3. A freezing machine comprising a vacuum chamber, a primary fluid ejector co'mmunicating therewith, a secondary fluid ejector communicating with the exhaust of said primary ejector, a condenser communicating with the exhaust of the secondary ejector and a liquid ejector located co-aXially with said iiuid ejectors and communieating with the exhaust of said s'econdarjT ejector and arranged to receive and discharge the fluid from said condenser.

4. A freezing machine comprising a vacuum chamber, a primary fluid ejector communicating with said chamber, a secondary fluid ejector communicating with the eX- haust of said primary ejector and a liquid chamber and a plurality of steam ejectm's between said condenser and said chamber for withdrawing vapor from said chamber; said vapor passing through said-*ejectrs-in series whereby a pressure is maintained in said chamber less than the pressure corresponding tothe vap'ortension of ice. ,j

In testimony whereof' I havevhei'eunto subscribed my name this '27th' day of January, 1905. j Y' .j

MAURICE LEBLANC. Witnessesz- ALBERT DELAS, HANSON C. CoxE. 

